Originally Posted by
wingracer
In the early days of 17.5 blinky, the cars felt terribly slow. Lap time wise they were actually ok but with those motors and batteries, they just had no punch so they felt slower than snot. Now motors and batts have improved so not only are the lap times quick but they have a fairly quick feel to them as well. Feels a lot like my brushed days when we ran procar (21t) motors. Still not quite as punchy and fast feeling as 19t racing (I LOVED 19t with 4600 4 cell), though 13.5 will get you there.
Totally agree. For me 19T was the sweet spot for 4-cell. Enough power to have punch and speed, but not so fast that you needed the unobtainium batteries and reflexes of a cat to be competitive. Looking at dyno sheets it appears that a brushed 19T was about 185-190W and a brushless 13.5T is 200W. The chassis are better and lighter, but we are now on 3.7v, hence 13.5T would seem to be be a decent comparison.
Jon.